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Finding the Fourth Proportional to 290,668.68, 436,066.20 and 122,092.83

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Solution

The fourth proportional to 290,668.68, 436,066.20 and 122,092.83 is: 183,165.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,668.68 : 436,066.20 = 122,092.83 : x
  2. Step 2: Convert to fraction form
    290,668.68/436,066.20 = 122,092.83/x
  3. Step 3: Cross multiply
    290,668.68x = 436,066.20 × 122,092.83
  4. Step 4: Simplify right side
    290,668.68x = 53,240,556,425.35
  5. Step 5: Solve for x
    x = 53,240,556,425.35/290,668.68
  6. Step 6: Final answer
    x = 183,165.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.